Perceived Occupational Stress is associated with Decreased Cortical Activity of the Prefrontal Cortex: A Multichannel Near-infrared Spectroscopy Study

Figures

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  Figure 1. Grand average waveforms of hemoglobin concentration ([Hb]) changes during the verbal fluency task across all the subjects for 52 channels. [oxyHb] and [deoxyHb] are shown in red and blue, respectively.

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  Figure 2. This figure illustrates the correlation coefficients (r) for 52 channels in study participants. The Arabic numerals represent channel locations. The scatter plot demonstrates the occupational burnout score regression slope for channel 26 (as denoted by a green circle), approximately located at the right fronto-polar region.

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  Figure 3. Probe setting and measurement points for 52-channel NIRS. (A) The localizations of all 52 channels were positioned according to the international 10–20 system. Red and blue circles indicate near-infrared light emitter and detector positions, respectively. By using the international 10–20 system, the detector 13 was positioned on the F z marker point, while the bottom row of channels was placed on a line between T 3 and T 4. (B) Probes with thermoplastic 3 × 11 shells were placed over bilateral frontotemporal regions. (C) The 52 measuring areas are labelled as ch1 to ch52 from the right posterior to left anterior.